Bug 38081: maskitoTimeOptionsGenerator does not properly support 12-hour times in...

Bug 38081: maskitoTimeOptionsGenerator does not properly support 12-hour times in calendar.inc

This patch corrects an issue where flatpickr time-only input boxes
    boxes were not having their inputs masked (limited) properly
    due to maskitoTimeOptionsGenerator not properly supporting
    12-hour time inputs for time-only input boxes.

To test:
1. Login to the staff intranet.
2. Open Administration->Libraries-> Edit any library.
3. Open your browser's development console (typically via F12)
    Verify a 'TypeError' message has been thrown for this page.
4. Type in any text into any of the opening hours
    This should be limiting only to properly formatted HH:MM.
5. Apply patch
6. Repeat steps 2-4
    Verify no errors show on your browser's development console.
    Verify opening hours entry are limited to proper HH:MM format.
7. Open Administration->System Preferences and change TimeFormat
    to 12-hours, Save.
8. Repeat steps 2-4
    Verify opening hours text entry are limited to properly
    formatted HH:MM AM/PM (or am/pm)

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>